diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 8c194fdd7e..cd7f62c0d4 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -1681,7 +1681,8 @@ int Process::sys$killpg(int pgrp, int signum)
         return -EINVAL;
 
     InterruptDisabler disabler;
-
+    if (pgrp == 0)
+        return do_killpg(m_pgid, signum);
     return do_killpg(pgrp, signum);
 }